Tom Senior S Type Vertical Mill Head refurb - Part 1

The vertical milling head on my Tom Senior 'M' type mill was chattering badly so I need to investigate the cause! Is it the bearings? Is it something else? Whatever, it needs to come off and be stripped to find out what the cause is! #milling #tomsenior #colchestermaster #machinist #diy #mechanic #tools #verticalmill #toolmaking #stripdown